Indicating device



L. B; CLARK.

INDICATING DEVICE.

APPLICATION FILED FEB: 25. 1919.

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specification of Letters-Patent.

Patented linto llll l lli a ueaue rana atlas; raisin. seen in. araiat.

To all whom it may concern:-

Be it known that-l, Enwenn B. CLARK,- a

citizen of the United States, and a resident" of Golconda, in the county of Pope and State of Illinois, have invented certain new and useful improvements inllndicating Devices, of which the following is a full, clear and exachdescription, reference being had to the accompanying drawings,:f orm1ng part of this specification.

My invention relates more particularly to indicating devices intendedfor use 'on railroad and other cars wherein it is desired to indicate tothe of the train or car. i

Une object of my invention is the provision of means whereby the conductor or operator of the train may cause the operation of the device, and whereby when once set in motionthe device will automatically continue to operate until it has changed ts indication, whereupon it will automatically sto i di nother object of 'my invention is the provision of means whereby the direction of travel of the indicator may be reversed.

' @ther objectsof my invention will appear and he described throughout the specificatron.

The novelty of my invention will be here.

inaftetrmore fully set forth and specifically pointed out in the claims.

in the accompanying drawing, F igure 1 is a front elevation of a device embody ng my invention, a part of the curtain being broken away to show the) interior.

Fig 2 is asectional end view of Fig. l, the section being taken immediately inside of the right hand endwal ll ig. 3 is a diagrammatic view showing the electrical connections. 4 i

The same numerals of reference are used to indicate identical parts in all the figures. in the drawing 1 represents any suitable base to which the housin 2 is attached so as to be easily dismounte The housing- 2 V is provided with an opening 3 through which a portion of the curtain 4t may be seen, thecurtain 4t carrying the namesof the station of the particular line on which the device may be used; together with such display advertising as may be desired The curtain is attached at jits ends to the rollers 5-Wl1l0lll may be flanged as at 6 "the worm wheels 8, passengers the next stop to maintain the proper alinement of the curtain.

To maintain the curtain in its proper position before the opening 3 of the housing 2, guide rollers 7 are mounted one above the other below the opening, the curtain passing from the rollers 5 over the guide rollers 7 as will be seen in big. 2.

Each of the rollers 5 are provided with a worm wheel 8 and a shaft 9 is mounted on a suitable bracket 10 and provided with a worm at each of its ends to engage one of one of these worms be mg right hand and the other left hand. The bracket 10 is mounted upon a motor 11' so that it may oscillate thereon, the motor 11 belng provided with a worm 12 meshing with a' worm wheel 13 Movement-limits are provided for the bracket 10, these being in the form of adjustmg screws ll carried in brackets 15 and arranged so that the depth of an engagement between the worm wheel 8 and either of the worms on the shaft 9 may be properly regulated, the upper screw controlling the lower worm and wheel.

The bracket 10 is provided with an arm 16 to. which a link 17 is attached, the link being attached to a bell crank 18 front which a connecting rod 19 extends to thereversing lever 20 which operates in connection with a quadrantfil providedwith detents 22 so that the lever may be set to the neutral point as shown or to engage the curtain winding mechanism for either direction.

The connecting rod 19 is provided with a yielding connection 23 for the purpose of permitting the lever 20 to lee operated even till carried by the shaft 9.,

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though the gearing may not be in position to tact roller 24- (l igs. 2 and 3) is'mounted lot on an arm 25 in such a manner thatiit may rest upon-the guide roller 7 and the curtaln 4t is provided with perforations dotted lines 26 (1F ig. 1) through which the contact roller through one of the perforations 26 in the curtain 4.,

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-2 l may have contact with the guide roller T, rot l ig. Elshowingthe roller making its contact A solenoid 27 is employed to raise the roller 24 outof contact with the roller 7 ceeding opening 26 in the curtain permits the roller 24 to contact with the guide roller and also to move the arm 28 until this.arm 27 the circuit then being from the conducmakes contact with the pin 29 and: brings the'blade 30 into contact with the pins 31 and 32. A solenoid 33 is used to hold the arm 28 in contact with the pins 29,31 and 32.

'A solenoid 34 is used to restore the arm 28 tothe position shown in Figs. 2 and 3 at the end ofeach operation of the device.

The electrical connections are as follows: Starting from any suitable source of current supply 35-one conductor 36 is led to the pin 32 and to one terminal of the motor 11, a branch 37 being led to any suitable push'button 38 which serves the function (of a starting switch and may be located at any convenient point in the car. A conductor 39' is. led from the other terminal of current supply and has a branch leading to the solenoid 27, a second branch to the solenoid 34 and is then led to the support for the bar 28. The other terminal of the solenoid 27 is connected as at 40 to the push button 38 while the other terminal of the solenoid 34 is connected as at 41 to I the guide roller 7, the contact roller 24 and arm 25 being connected as at 42 to the pin 31. The pin 29'is electrically connected to one terminal .of the solenoid 33 as at 43, the other terminal being connected as at 44 to the electric motor 11.

.1 The flowv of current in the various circuits' thus. provided, is as follows.

With the parts in the position shown in Figsr2 and 3 the operator desires to cause indication on the curtain 4 and to do this the display of the next succeeding signal or he presses the push button 38 thus closing the lc ircui t through the solenoid 27 and en: .ergizmg ts core and raising the roller 24 from the roller .7, the arm 25 being magnetic, and also moving the ,bar 28 to its point of contact with the pin 29, the bar being also afiected by magnetism. As soon as the bar 28 makes its contact with the pin 29 the circuit is established through the motor the current flowing from the conductor 39 throughthe bar 28, pin 29, conductor 43, solenoid 33, conductor 44, motor 11,

conductor 36 thus completingthe circuit and energizlng theflcore of the solenoid 33 to hold the bar 28 in its contact position, the

making. of this contact starting the electric motor and causing the movement of the curtain 4 through the gearing previously described.

The blade 30 establishes connection between the pins 31 and 32 as soon as the bar 28 makes its contact with the pin 29 the blade 30 being preferably insulated as at 45 from the bar 28, the circuit thus established being part of the circuit brought ,into op eration for stopping the device though this circuit 1s not completed until the next suc-.

tor 39 through thesolenoid 34, conductor 41, roller 7, roller 24, arm 25, conductor 42, pin 31, blade 30, pin 32 and conductor 36 thus forming a circuit which energizes the core of the solenoid 34 and pulls the bar out of its position in contact with the in 29 and to the position shown in Fig. 3, t 1115 breaking the circuit through the motor and also breaking the circuit through the contact roller, a light spring 46 being employed to hold the bar 28 out of contact with the pin '29. i

The solenoid 34 is of sufiicient'size to overcome the attraction of the solenoid 33 so that at the instant of the contact of the roller 24 with the guide roller 27 the bar 28 is pulled away from the solenoid 33 as previously described.

The pins 29, 31 and 32 arepreferably made so that they may be adjusted to properly establish the circuits called for.

It is not necessary that the operator hold the push button 38 on contact longer than in instant for the reason that as soon as the solenoid 27 is energized and the motor connection established, the curtain 4 is moved so that the opening of the circuit through the solenoid 27 only permits the roller 24 to drop upon the curtain, the curtain being used as an insulator between this roller andthe guide roller 7. until the next succeeding opening 26 in the curtain 4 comes under the roller 24 whereupon the stopping circuit is established through the solenoid 34.

Having thus fully descr'ibed my invention, I claim:

1. In an indicating device the combination of a curtain having display indications thereon, rollers upon which. said curtain may be wound, gearing for alternately driving said rollers in afdirection to wind the curtain thereon, means for shifting said gearing into engagement for driving either of said rollers, a yielding connection in the shifting means whereby a portion thereof may be fully operated to operate the balance when proper driving relations are established, means for driving the gearing and means controlled by the position of the curtain for stopping the drivlng means.

2. In a n-indicating device the combination of a curtain having display indications thereon, rollers provided with gearing for moving the curtain, an electric motor for operating the gearing to drive the rollers, a switch for establishing electrical connections for said motor, a solenoid for closing said switch, a solenoid for opening said switch, and a contact controlled by the position of thecurtain for energizing; the solenoid for opening the switch.

3, In an indicating device the combina- "ms fqr said :rsmd swlfcch;

. (1 m the curtain, an Mac Twitch far @stablishing lime ma ia for drive the mHers, electrical mommamotor, a sehnaidi for dmsing smlenoid "fer holding said gaming 1%) s'wifrdz in c" Irwin? @1112 w 1 opening}; switch, and a, w tact nparatedi by him PJSI- tion 01* the curfiain to energize the solenoid for waning 121w switch 620 sfaop the M03012 EDWARD YB. (CLARK. 

